katrid:
step straight into Intense Moves. It is fabulously energetic with great driving music, Gin really motivates you and it is so modifiable it's not true!
Energy Sprint is also fabulous for different reasons. I don't think it is "easy" compared to the other two, it depends on how much you put into it. If you really "go down to get up" on the moves as Karen advises, then it is a very powerful workout. It is also graceful. It makes me feel wonderful during it and afterwards because the music matches the moves perfectly, like in Powermax.
While you are working on these two, go ahead and start with Cathe's IMAX, modify where you need to, understand that Cathe's anaerobic bursts are a little longer than Gin's and if you need to bring the level down after 40 seconds or so, then that's fine. You are in control on these workouts and you do as much or as little of the anaerobic bursts as your body can take each time you do them.
(I do the other two more than I do IMAX simply because I don't have air conditioning here at home and in 93 degrees, I just can't take Cathe's longer intervals. ) The other two seem more do-able to me in these conditions.
Think about your work out environment and have fun!
Clare